EP4230474B1 - System und verfahren zur einstellung eines fahrersitzes eines kraftfahrzeugs - Google Patents

System und verfahren zur einstellung eines fahrersitzes eines kraftfahrzeugs Download PDF

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Publication number
EP4230474B1
EP4230474B1 EP23153480.1A EP23153480A EP4230474B1 EP 4230474 B1 EP4230474 B1 EP 4230474B1 EP 23153480 A EP23153480 A EP 23153480A EP 4230474 B1 EP4230474 B1 EP 4230474B1
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EP
European Patent Office
Prior art keywords
seat
driver
motor vehicle
adjusting
activation
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Active
Application number
EP23153480.1A
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English (en)
French (fr)
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EP4230474A1 (de
Inventor
Samuel CAMPANA
Fabrice Lesbats
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Renault SAS
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Renault SAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits

Definitions

  • the present invention relates to the management of the driving position of a motor vehicle. It relates in particular to the adaptation of the driver's position, when the vehicle is moving.
  • the system does not relate to the autonomous driving phase of autonomous vehicles.
  • the system does not relate to vehicles in which the driver could be disconnected from a driving position while driving.
  • Vehicle seats and more particularly the driver's seat, are in fact adjustable according to several degrees of freedom. This makes it possible to adjust the longitudinal position of the seat, its inclination, its height, to adjust the inclination of the backrest, of the seat,
  • the various adjustments of the seat position are made easier when the adjustments are made electrically.
  • the document DE102013004811 offers to automatically adjust certain driving accessories such as the rearview mirror, steering wheel and seat according to the driver's morphology.
  • the document US2020017000 discloses a system for adjusting a driver's seat of a motor vehicle, comprising a computer, a set of seat actuators controlled by the computer and a human-machine interface connected to the computer to control the seat adjustment, such that it comprises means for limiting the seat movement time to a maximum value, when the actuator supply current is too high.
  • the present invention provides a solution to the indicated problems.
  • the invention relates to a system for adjusting a driver's seat of a motor vehicle, in particular a system for adjusting the driving position of a driver's seat of a motor vehicle, comprising a computer, a set of seat actuators controlled by the computer and a human-machine interface connected to the computer to control the adjustment of the seat, the adjustment system comprising means for limiting to a maximum travel time value, the travel time of the seat, when the vehicle is running and when the seat adjustment control is activated on the human-machine interface during an activation time.
  • the travel time of the seat is limited in time, corresponding to a limited movement in space, allowing the driver to remain in control of his vehicle.
  • the system for adjusting a driver's seat of a motor vehicle in particular a system for adjusting the driving position of a driver's seat of a motor vehicle provided with pedals, comprises a computer, a set of seat actuators controlled by the computer and a human-machine interface connected to the computer to control the adjustment of the seat, the adjustment system comprising means for limiting to a maximum travel time value, the travel time of the seat when the vehicle is moving and when the adjustment control is activated on the human-machine interface during an activation time, ensuring that the driver's foot remains in contact with the pedals.
  • the movement time of the seat is limited in time, corresponding to a limited movement in space, allowing the driver to remain in control of his vehicle, that is to say to keep at least one foot in contact with the pedals, the brake pedal in particular.
  • the invention also relates to a method for adjusting a driver's seat of a motor vehicle, in particular a method for adjusting the driving position of a driver's seat of a motor vehicle, in which the movement of the seat is controlled as a function of an activation carried out from a human-machine interface during an activation time t, the movement of the seat is adjusted when the vehicle is moving and the movement time of the seat is limited after an activation time greater than a maximum value of movement time.
  • the temporal limitation of the movement time corresponds to a movement of the seat in space allowing the driver to remain in control of his vehicle.
  • the method for adjusting a driver's seat relates to a motor vehicle equipped with pedals, in which the movement of the seat is controlled according to an activation carried out from a human-machine interface during an activation time, the seat is adjusted when the vehicle is moving and the movement time of the seat is limited after an activation time greater than a maximum value of movement time, ensuring that the driver's foot remains in contact with the pedals.
  • the maximum value of movement time corresponds to a movement of the seat in the space allowing the driver to remain in control of his vehicle, in particular it allows the driver to keep a foot close to the pedals in the case of a vehicle equipped with pedals.
  • the human-machine interface is a control button and activation is carried out by pressing the control button for an activation time.
  • the method may further include a step of warning the driver when the computer detects an activation time greater than the maximum travel time value.
  • the maximum travel time value is equal to two seconds.
  • the invention also relates to a motor vehicle comprising a seat adjustment system according to the preceding characteristics.
  • the adjustment system comprises a human-machine interface 1, a computer 2 and an actuator 3.
  • the system allows adjustment of the driving position of the driver's seat, for a vehicle in which the driver is always, and continuously, in the driving position when the vehicle is moving, as shown in figure 2 .
  • the system does not concern the autonomous driving phase of autonomous vehicles.
  • the system does not concern vehicles in which the driver could be disconnected from a driving position while driving.
  • the vehicle as shown in figure 2 is thus equipped with adjustable seats, with electrical adjustment, and comprises actuators 3 for example articulation type adjustment mechanisms, to adjust the backrest inclination, electric slides 17, raising mechanisms with gear motor, controllable under the action of dedicated control buttons 15.
  • the human-machine interface 1 sends a signal to the computer 2 which triggers the actuators 3.
  • the computer 2 can be integrated into the driver's seat, the actuator assemblies 3 act on the seat and the backrest of the driver's seat and the human-machine interface 1 can be manipulated by the driver.
  • the human-machine interface 1 comprises, for example, side seat control buttons 15 as shown in figure 3 , comprising a button 13 controlling the longitudinal movement of the seat on its slides 17, and a button 14 controlling the inclination of the seat back 16.
  • this interface can also comprise a capacitive screen arranged in a central and high position on the dashboard.
  • the interface may also include a voice recognition command, and may include a head-up display to provide the driver with speed, navigation, or alert information in their field of vision without taking their eyes off the road.
  • the movement is carried out by means of the actuators 3 provided for this purpose in the seat.
  • These actuators 3 can receive an activation or stop instruction from the computer integrated in the seat, which receives its instructions from the human-machine interface 1, with reference to the figure 1 .
  • the computer checks whether the pressing time exceeds the maximum value of the movement time t0 and prohibits, if such is the case, the movement of the seat 10, beyond this maximum value of movement time t0 for a press made on the button for a time t.
  • the system comprises means for limiting to the maximum value of movement time t0 the movement time of the seat td, when the vehicle is moving and when the seat adjustment control is activated on the human-machine interface for an activation time t.
  • limitation means are placed in the computer.
  • FIG. 5 A flowchart illustrating the main steps of a method implemented by the device according to the invention is shown in figure 5 : the adjustment command is first activated on the human-machine interface, here a seat movement control button, for an activation time (step 30). This activation causes the movement of the seat controlled by the computer 2 giving the order to act to the actuators (step 31). The movement of the seat, under the control of the computer, only continues when the activation time t, or pressing time, is less than a maximum value of movement time t0. The computer checks this condition continuously while the driver presses the human-machine interface (step 32)
  • step 33 When the driver presses the button for a time t greater than time t0, the seat stops. (step 33)
  • the seat travel time td is equal to t0 when the activation time t is greater than a maximum travel time value t0.
  • the seat travel time td is thus limited after an activation time t greater than a maximum travel time value t0.
  • the value t0 is a time value for maintaining contact with the pedals in order to maintain safe driving conditions.
  • the maximum travel time value t0 has, for example, a value of two seconds.
  • the seat in the described embodiment of a longitudinal seat movement control, will only move a maximum of two seconds forward or two seconds backward. This two-second movement induces a time limit on movement which allows the driver, to have one foot remaining in contact with the pedals, especially the brake pedal.
  • a driver warning step can also be added when the calculator detects an activation time t greater than the maximum travel time value t0, informing the user for example that the adjustment has been limited and that the user must press again in order to continue the desired adjustment. This alert is inhibited if the vehicle is stationary. At the same time, movement of the seat is prohibited.
  • the time limit t0 is active at non-zero speed, that is to say it is active when the vehicle is moving and for an activation time or support time t. It allows the seat to be moved to the requested position while ensuring that the driver's foot 11 remains in contact with the brake pedal 12.
  • FIG. 4 illustrates this case: a bottle 20 placed in the door storage area is likely to press unintentionally on the seat adjustment control button 15 when the door is closed or when the vehicle is moving, following, for example, an undesired movement of the bottle 20 in the storage area, which would cause the seat adjustment to be activated.
  • the undesired pressing only causes, while the vehicle is moving, a movement of maximum value of movement time t0, allowing the occupant to maintain control of the vehicle.
  • the calculator is thus programmed to monitor the pressure on the adjustment button and prevent the seat from moving if the pressure is not released after an activation time beyond the maximum movement time value. t0. This is to ensure that the seat only moves within a safe interval, thereby guaranteeing that the driver's foot remains in contact with the pedals 12.
  • the computer allows movement again if the button press is released and if the driver presses it again. In this case, the movement time will again be limited to the maximum travel time value t0 after which the seat will lock, in particular if the button remains actuated by a press from the driver or, for example, by an object placed in the door storage area and which would interfere with the button.
  • the invention is not limited to the embodiments described.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Claims (9)

  1. System zur Einstellung eines Fahrersitzes eines Kraftfahrzeugs, insbesondere System zur Einstellung der Fahrposition eines Fahrersitzes eines Kraftfahrzeugs, das einen Rechner (2) aufweist, eine Gruppe von Sitzaktuatoren (3), die von dem Rechner gesteuert werden, und eine Mensch-Maschine-Schnittstelle (1), die mit dem Rechner (2) verbunden ist, um die Sitzeinstellung zu steuern, dadurch gekennzeichnet, dass es Mittel aufweist, um die Sitzverstellzeit (td) auf einen Maximalwert der Verstellzeit (t0) zu begrenzen, wenn das Fahrzeug fährt und wenn die Sitzeinstellsteuerung an der Mensch-Maschine-Schnittstelle während einer Aktivierungszeit (t) aktiviert ist.
  2. System zur Einstellung eines Fahrersitzes eines Kraftfahrzeugs nach Anspruch 1, dadurch gekennzeichnet, dass die Mensch-Maschine-Schnittstelle eine Bedientaste ist und dass die Aktivierung der Einstellsteuerung durch ein Drücken während einer Aktivierungszeit (t) auf die Bedientaste erfolgt.
  3. System zur Einstellung eines Fahrersitzes eines Kraftfahrzeugs nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Sitzverstellzeit (td) gleich dem Maximalwert der Verstellzeit (t0) ist, wenn die Aktivierungszeit (t) größer als der Maximalwert der Verstellzeit (t0) ist.
  4. System zur Einstellung eines Fahrersitzes eines Kraftfahrzeugs nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Maximalwert der Verstellzeit (t0) gleich 2 Sekunden ist.
  5. Verfahren zur Einstellung eines Fahrersitzes eines Kraftfahrzeugs, wobei die Verstellung des Sitzes in Abhängigkeit von einer Aktivierung gesteuert wird, die ausgehend von einer Mensch-Maschine-Schnittstelle (1) während einer Aktivierungszeit (t) durchgeführt wird, dadurch gekennzeichnet, dass die Verstellung des Sitzes eingestellt wird, wenn das Fahrzeug in Bewegung ist, und dass die Sitzverstellzeit (td) nach einer Aktivierungszeit (t), die größer als der Maximalwert der Verstellzeit (t0) ist, begrenzt wird.
  6. Verfahren zur Einstellung eines Fahrersitzes eines Kraftfahrzeugs nach Anspruch 5, dadurch gekennzeichnet, dass die Mensch-Maschine-Schnittstelle eine Bedientaste (13, 14, 15) ist und dass die Aktivierung durch ein Drücken während einer Aktivierungszeit (t) auf die Bedientaste (13, 14, 15) erfolgt.
  7. Verfahren zur Einstellung eines Fahrersitzes eines Kraftfahrzeugs nach einem der Ansprüche 5 oder 6, das darüber hinaus einen Schritt zur Warnung des Fahrers aufweist, wenn der Rechner eine Aktivierungszeit (t) erfasst, die größer als der Maximalwert der Verstellzeit (t0) ist.
  8. Verfahren zur Einstellung eines Fahrersitzes eines Kraftfahrzeugs nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass der Maximalwert der Verstellzeit (t0) gleich 2 Sekunden ist.
  9. Kraftfahrzeug mit einem System zur Einstellung eines Fahrersitzes nach einem der Ansprüche 1 bis 4.
EP23153480.1A 2022-02-18 2023-01-26 System und verfahren zur einstellung eines fahrersitzes eines kraftfahrzeugs Active EP4230474B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2201485A FR3132880B1 (fr) 2022-02-18 2022-02-18 Système et procédé de réglage d’un siège de conducteur d’un véhicule automobile

Publications (2)

Publication Number Publication Date
EP4230474A1 EP4230474A1 (de) 2023-08-23
EP4230474B1 true EP4230474B1 (de) 2025-01-15

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EP23153480.1A Active EP4230474B1 (de) 2022-02-18 2023-01-26 System und verfahren zur einstellung eines fahrersitzes eines kraftfahrzeugs

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FR (1) FR3132880B1 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013004811A1 (de) 2013-03-19 2013-09-19 Daimler Ag Verfahren zur Einstellung von Fahrzeugeinbauten
FR3072909B1 (fr) * 2017-10-31 2021-06-11 Renault Sas Systeme et procede de reglage d'un siege de conducteur d'un vehicule automobile
KR102497149B1 (ko) * 2018-07-12 2023-02-08 현대자동차주식회사 차량 및 그 제어방법

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EP4230474A1 (de) 2023-08-23
FR3132880B1 (fr) 2024-01-05
FR3132880A1 (fr) 2023-08-25

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